package com.heima.user.service.impl;

import cn.hutool.core.bean.BeanUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.dtos.ApUserDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.model.user.vos.LoginVo;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.heima.utils.common.AppJwtUtil;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;


@Service
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements ApUserService {

    @Override
    public ResponseResult login(LoginDto dto) {
        //1.游客  同样返回token  id = 0
        if (StringUtils.isBlank(dto.getPhone()) || StringUtils.isBlank(dto.getPassword())) {
            return ResponseResult.okResult(LoginVo.builder().token(
                    AppJwtUtil.getToken(0L)
            ).build());
        }
        //2.正常登录（手机号+密码登录）
        //2.1查询用户
        ApUser apUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, dto.getPhone()));
        if (apUser == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST,"用户不存在");
        }

        //2.2 比对密码
        String salt = apUser.getSalt();
        String pswd = dto.getPassword();
        pswd = DigestUtils.md5DigestAsHex((pswd + salt).getBytes());
        if (!pswd.equals(apUser.getPassword())) {
            return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
        }
        //2.3 返回数据  jwt
        ApUserDto user = BeanUtil.copyProperties(apUser, ApUserDto.class);
        String token = AppJwtUtil.getToken(apUser.getId().longValue());
        return ResponseResult.okResult(LoginVo.builder()
                .user(user)
                .token(token)
                .build());
    }
}